Improvement in the mantflfacture of metal cans



county of Philadelphia, and State of Pennsylvania, have teturing'Metal Gans; and'we do hereby declare that lug, l, which forms au inclined plane.

. du order to drop or lower that end ofthe lever.

glllii 0% atea? JOHN PoLLocK AND 'rHEoDoRE J. meunier;

PENNSYLVANIA.

Letters Patent No. 83,660, (lated Nocembcr 3. 1868.

IMPRQVEMENT INTHEMANFACTU'R OF NIE-TAL CANS.

''he Schedule referred to 1n these Letters Patent and making part of the same.

"To all whom it concern:

13e 4it known thatwe, JOHN POLLocK and THEO# Donn J. Dmnmon, both of the city of Philadelphia,

invented a new and useful Improvement in Manuthe following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings,L making a part of this specification, in which Figure 1, plate 1, is a side elevation .of our machine.

Figure 2, plate 2, is a plan View of samer Figure, plate 2, is a detached viewof rod and lever.

Figure 4, plate 2, is a view showing how the tongues are cut ou the side seam of the cans.

Figure 5, plate 2, is a view showing the tongues interlocked preparatory to being pressed together.

The object of our invention consists in joining together the edges of the metal, which forms the sides of cans, by means of tongues interlocking and fastening into each other, this process being accomplished by the machine hereinafter described.

To enable others skilled in the art to make and use our invention, we will now proceed tol describe its construction and operation. I

T, figs'. fand 2, represents the table, on one end and in the centre of which is placed an upright or standard, S. The upper end oi' said standard is made with au open jaw in which is placed and centred a lever, L.

Secured to and projecting out from the standard S is a cylinder, O, on which is placed, and encircles it, a plate, P- u ,t the rear of the standard S is a plate, P', which is connected to plate P by means of rods r and o", on ,which are placed spiral springs s and s. v

On the back, and in the centre of plate P', is east a On the end or short arm of lever L is connected a sliding block, B, which works in guides, secured to the front part of the standard S.

On the opposite end, or on theend of the lever` L, which forms the long arm, is aiiixed an excess of metal The end of lthe longI arm of the lever L is provided with-a slot, O, in which is centred a vibrating guide, G.

Passing through the said guide is a rod, lt, with the part above and below the slot O provided with a thread, onwhich are placed setfscrews or jam-nuts N and N'.

The lower end of the rc'd 1t is made with an open' jaw in which works a treadle, l).`

On the rod ll', and directly opposite to the .lug I, on the plate P', is placed a right-anglc lever, L', the long arm oi which is provided with a set-screw which touches on the lower part of the rod lt, and the short arm slides ou the lug l.

On the lower part of the block B are placed two or more bits or punches b, with their cuttingedges made bevelled.

On the left-hand side of the table T is fastened a I standard, S', made with a slot or--guide,in which is placed and works a iiat bar, F. V

Gonnectedlwith the lower end of the bar F, by means of a loose joint, is a bar, F.

'.On the bar F, and immediately above the ends V which connect with F-, is an arm, a.

The upper end of the bar F is made with an oifset,

which rests on a lever, L2, said lever having its fulcrum placed on the upper part of the standard S.

Lever L2 is connected to a lever, L3, placed on the right-hand side of the standard S bymeans of a curved bar passing over the lever L. In order to throw the bar F otf ot' the lever L2, when it is downto its full throw, the part pof the bar F, which works in' the guide, is made larger and rounded off so as to slide over the pin d.

Running from the end of the arm a to the upper end of the standard S1, and connected thereto, is a spiral spring, s2.

Resting'on the levers LZ and L3, and passing over the short arm of the lever L, is a saddle, E, connected to the centre of which are hammers h, which pass jdown on the inner and outer sides of the block B on to the cylinder C. The ends of the saddle E, which rest ou the levers Lz and L3, have attached' to them spiral springs s3 and s4, the lower ends of which are attached to the topy of the table T.

On top of cylinder C, and at the part where the points of the punches and hammers fall, is secured a steel die, I, provided with sockets corresponding to the punches.

On the end of the cylinder C is placed a flexible tongue, f. Y

In securing the edges ofthe metal that is to form the sides of the can, the ends are overlapped, and one side pressed slightly in advance of the other; as shown lin lig. 4. The overlapped part ofthe metal is then placed on top of the cylinder C, and immediately under the punches b. rlhe punches are now ,forced down through the metal, by means of thetreadle` D, which operates the lever L, the cutting-edges ofthe punches being bevelled, cut the metal'only on three sides, and*- the parts so loosened or separated by the cutting on the three sides are driven through and form a tongue. During thisvprocess the ends are still one in advance of the other.' The foot is now removed from the treadle, and the lever L drops, carrying with it the rod 1t, on which is placed the lever L. The short arm of said lever presses on the lug Z, and presses forward the plate P', and also the plate P,.by means of the rods lr and The plate P now presses against the edges of the metal and forces the edges Iup square, as shown in fig. 5, fand at the same time interlocks the tongues.

, OF PHILADELPHIA,

The cans during this operation are retained in position on the cylinder by means of the tongue f. The plates I and l are now forced back into their original position by means of the'springs s and s. The tongues are now secured together and slightly spread by the hammers h, which are operated by a treadle connected to the bar F. The spring s2, attached to the arm a, draws the bar F back into the guide after the pressure on the treadleistaken o. The force of the blows given by theV hammers h is regulated by' means of springs s3 and `s, and set-screws placed on the saddle E.

Having thus described our inventibn, its construction and operation,

What we claim, and desire to secure by Letters Patent, is-

1. Table T, levers L, L1, L2, and L3, plates P and P2,

lug l, standards S and S', rods fr and/r1, springs s, s, s2,

sa, and s, block B, and its bevelled punches b, saddle E, and its hammers h, cylinder C, ,ilegible tongue f, flat bar Fand F; arm a, rod R, vibrating guide G, and treadle D, all arranged, constructed, and operating in the manner and for thepurpose set forth..

2. The combination of the sliding plates P and P',

rods r and '1",and springs s` and s* with the cylinder C and flexible tongue j, for the purpose of interlocking the tongues, and bringing the edges of the can together, as herein set forth.

In testimony whereof, we have hereunto signed our names, in the presence of two subscribing witnesses.

J OBIN POLLOGK. THEODORE J. DIEDRICK.

Witnesses: t

CHARLES H. EVANS, ISAAC R. Omonn. 

